datasheet http://www.ti.com/lit/ds/symlink/hdc1080.pdf

lib https://github.com/closedcube/ClosedCube_HDC1080_Arduino

example https://github.com/closedcube/ClosedCube_HDC1080_Arduino/blob/master/examples/hdc1080demo/hdc1080demo.ino

14-bit mode 1/3s

Sensors test examples: 

Test 3 48 sensors high humidity spike

Test 4 slow humidity grow

Test 1 v5 board in Freezer

Test 2 v5 board stable environment

Test 5 v5 saturated salt solution

Test 7 v5 humidity absorber

Test 4 v6 Saturated NaCl solution

Test 2 v7 room RH12 low humidity

Test 3 v7 balcony RH15-92 changing humidity

Test 2 v8 Office RH28

Test 3 v8 Humidity absorber RH12

Test 4 v8 RH12 to RH94#HDCx080vsSHT85SensorsHumidity

Test 2 v8b Balcony low RH

Test 0 v9 balcony high humidity